Do autistic children struggle to mentally simulate places and events?
Autistic children had more trouble finding hidden targets in a virtual island and gave less accurate accounts of past and future events, but did as well as peers on a theory-of-mind task and on memory for item pairings.
Source
Spatial navigation, episodic memory, episodic future thinking, and theory of mind in children with autism spectrum disorder: evidence for impairments in mental simulation?
Study at a glance
- Design
- Case-control — Children with ASD vs matched typically developing children on a battery: virtual 'memory island' navigation, past/future event descriptions, animated-triangles ToM, relational recognition memory and segmented block design
- N
- N=40 · 20 children with ASD and 20 matched typically developing children (per abstract; the extracted text lacks the Participants section, and some analyses have fewer children, e.g. 38)
- Population
- Intellectually high-functioning children with autism spectrum disorder (mean age about 8) and sex-, age-, IQ- and language-matched typically developing children in the UK
- Outcome
- Virtual navigation efficiency (hidden vs visible targets), accuracy/specificity of past and future event descriptions, animations ToM score, relational recognition memory, central coherence
Structured fields used in claim comparison tables when every cited study has a complete layer.
What they did
The researchers compared 20 high-functioning children with autism to 20 typically developing children matched on sex, age, IQ and language. Children explored a virtual island to find objects that were either flagged (visible) or had to be remembered (hidden), described specific past and future events that parents later checked for accuracy, narrated animations of moving triangles, completed a recognition test for items, backgrounds and their combinations, and did segmented and unsegmented block design.
What they found
The autism group did as well as peers when targets were visible but took longer, succeeded less often and took longer routes when targets were hidden, and more repetitive behaviours went with poorer navigation. Their past and future event descriptions were less often judged accurate by parents, suggesting some confabulation. Contrary to predictions, the groups did not differ on the triangles theory-of-mind task or on memory for item-background combinations, and the predicted correlations between tasks mostly did not appear.
The limits
What it doesn't show
The groups were small, so null results (theory of mind, relational memory) and the within-group correlations are fragile, as the authors acknowledge. The ToM task was hard for everyone, with the comparison group scoring near the floor on the mentalising clips, which may have hidden a real difference. The pattern is consistent with a shared self-projection or scene-construction deficit but does not prove it, since the predicted links between navigation, episodic memory and ToM did not emerge. The extracted text of this paper lacks the Introduction and Participants sections, so full recruitment and matching details could not be checked.
Key terms
- Episodic future thinking
- Imagining a specific personal event that might happen in the future, sometimes called episodic foresight or prospection.
- Self-projection
- The proposed ability to mentally shift from the here-and-now to another time, place or person's perspective, thought to underlie memory, future thinking, navigation and theory of mind.
- Theory of mind (ToM)
- The ability to attribute mental states such as beliefs and intentions to others.
- Relational memory
- Memory for how separate elements go together, such as which object appeared on which background.
- Central coherence
- The tendency to process information as a whole rather than as separate parts; weak central coherence is a proposed feature of autism.
- Confabulation
- Producing memories or accounts that are inaccurate without intending to deceive.
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Quiz yourself
In which condition did children with autism show clear navigation difficulties?
Common questions
Why compare visible and hidden targets in the navigation task?
Visible targets can be reached just by heading toward a flag, whereas hidden ones require a memorised map of the island. Group differences only in the hidden condition point to a memory-guided navigation problem rather than general difficulty with the game or joystick.
Why check children's event descriptions with parents?
Specific-sounding answers can still be made up. Parent ratings showed that autistic children's specific accounts were less often accurate, which a detail count alone would miss.
Does this study show autistic children have intact theory of mind?
Not really. Both groups found the mentalising clips very hard, so floor effects may have hidden a difference, and most previous studies do find ToM difficulties in autism.
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